[Fulltiming]

I find that if I fill my oil level to the full mark on the dipstick, I use more oil than if I fill it to 1 quart below full. I check my oil level each day when traveling and if it gets down about 2 quarts, I add a quart. You are in the right oil consumption range for an engine with usage. I also find that if my coach sits for an extended period it uses oil at a somewhat faster rate than when it is being driven long mileages on consecutive days.

I do use Delo 1000